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Power Transmission

Making sure brakes don’t break

Q: What’s the difference between stopping dynamically and holding a load with power-off brakes? How do I correctly size a power-off brake?

Coaxial KD 32 Planetary Gearhead Drive from Maxon is Quiet but Powerful

Coaxial KD 32 planetary gearhead drive from Maxon is quiet but powerful .

An Accurate and Durable Voice-Coil Housed Linear Actuator from BEI Kimco Magnetics

An accurate and durable voice-coil housed linear actuator from BEI Kimco Magnetics

ST1 Torque Limiter from R+W America Protects Against Torque Overloads

T1 torque limiter from R+W America protects against torque overloads .

The Basics of Electromagnetic Clutches and Brakes
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Electromagnetic clutches and brakes use electrical activation to transfer mechanical torque. Designers can customize the units with friction materials, air gaps, and overexcitation techniques.

Understanding Key Power Transmission Technologies

OEM design teams are under pressure to juggle technologies with specifications with the outcome always being a great new or improved product. Many of these projects have Power Transmission components at their core and the wrong technology can really hurt the end product.

Water-Cooled Clutches and Brakes

Water-cooled clutches and brakes suitable for marine environments

Servocouplings
Servocoupling selection

William Hewitson of Ruland Manufacturing covers various styles of servocouplings, including the advantages and drawbacks of each. 4:39

Product Spotlight: Endless Timing Belts

The AT 3 truly endless timing belts have no weld zone and its belt-tension member is uninterrupted for higher tensile strength compared to a spliced and welded timing belt.

Product Spotlight: Bushings and Bearings

Graphalloy bushings and bearings can withstand temperature from cryogenic to 1,000°F and are dimensionally stable when submerged or under load — applications where oil, grease, and plastic fail.

Product Spotlight: PM Gearmotors

The NEMA -23 and 34 brushless PM integrated gearmotors are combined with a low-noise planetary geartrain to produce 26.5 lb-in. rated torque from the DS 2315 frame size and 224 lb-in. from the larger DS 3420.

Product Spotlight: Stepper-Driven Rotary Stage

The Model DT 180-SM positioning rotary stage weighs only 6.2 kg but handles centric loads to 300 N.

Product Spotlight: Bellows Couplings

MK Series of miniature bellows couplings mounts in a variety of configurations

New Products: Worm gearboxes

IronHorse worm gearboxes have double-lipped embedded oil seals to prevent leakage.  The gearboxes, designed to change drive direction by 90°, mount in any direction except with the motor pointing up.

New Products: Timing Pulleys With Configurable Hub

A new line of timing pulleys feature a configurable hub that suits any shaft hole and flange requirement.

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